Macao Polytechnic University, Faculty of Health Sciences and Sports
Macao, China
Location status: Recruiting
Recruiting
NCT Number: NCT07612956
Effects of a 4-Week Altitude Training on Sport-Specific Performance, Body Composition, and Cardiac and Pulmonary Function in Adolescent Male Rowers
This study aims to investigate the effects of a 4-week altitude training program on adolescent male rowers. The research will examine changes in athletic performance, athletic body composition, athletic cardiac function, athletic pulmonary function, and selected blood markers. Participants will be stratified by biological maturation based on peak height velocity to explore whether maturity influences athletic training adaptations. Measurements will include non-invasive assessments of athletic performance, athletic body composition, athletic heart and lung function, as well as venous blood sampling for hematological markers. The study intends to provide evidence for optimizing high-altitude training strategies in youth rowing.
Recruiting
Interested in participating?
Request InfoKey information
Age range
12 year–19 year
Sex eligibility
Male
Study type
Interventional
Phase
Not applicable
Primary location
Who can participate
Healthy volunteers accepted: Yes
Only the study team can determine whether someone qualifies for participation.
Inclusion criteria
Male adolescent rowers aged 12-19 years Regularly training and participating in competitive rowing Willing to participate in 4-week altitude training program and follow testing protocol -
Exclusion criteria
Any cardiovascular, respiratory, hematologic, or musculoskeletal disorders Injury or illness preventing participation in high-intensity rowing training Participation in another high-altitude training program within the last 3 months Any medical contraindication to blood sampling
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Treatment and study plan
4-Week Altitude Training
BehavioralParticipants undergo a 4-week altitude training program, including aerobic, anaerobic, and sport-specific rowing exercises. Both Post-PHV and Mid-PHV groups receive the same training protocol. Pre- and post-training assessments include athletic performance, athletic body composition, athletic cardiac and pulmonary function, and hematological markers. Participants are stratified by biological maturation (PHV offset) to explore whether maturity influences training adaptations.
Primary outcomes
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Peak Power During Wingate Test
Time frame: Pre-training and immediately post 4-week altitude training
Peak power measured during the Wingate anaerobic test before and after the intervention.
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Maximal Oxygen Uptake
Time frame: Pre-training and immediately post 4-week altitude training
Pre- and post-intervention measurement of VO₂max using standard exercise testing protocol to assess aerobic capacity in adolescent male rowers.
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Mean Power Output During 1500 m Rowing Test
Time frame: Pre-training and immediately post 4-week altitude training
Mean power output measured during the 1500 m rowing ergometer test before and after the intervention.
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Body Weight
Time frame: Pre-training and immediately post 4-week altitude training
Body weight measured before and after the training period.
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Body Fat Percentage
Time frame: Pre-training and immediately post 4-week altitude training
Body fat percentage measured using bioelectrical impedance or other validated method.
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Forced Vital Capacity (FVC)
Time frame: Pre-training and immediately post 4-week altitude training
Forced vital capacity measured using spirometry before and after the intervention.
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Maximal Voluntary Ventilation
Time frame: Pre-training and immediately post 4-week altitude training
MVV measured using standard pulmonary function testing protocol pre- and post-intervention.
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Left Ventricular Volume
Time frame: Pre-training and immediately post 4-week altitude training
Echocardiography measurement of left ventricular end-diastolic and end-systolic volume.
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Ejection Fraction
Time frame: Pre-training and immediately post 4-week altitude training
Echocardiography assessment of left ventricular ejection fraction pre- and post-training.
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Myocardial Thickness
Time frame: Pre-training and immediately post 4-week altitude training
Measurement of interventricular septum and left ventricular posterior wall thickness by echocardiography.
Secondary outcomes
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Muscle Mass
Time frame: Pre-training and immediately post 4-week altitude training
Skeletal muscle mass measured pre- and post-training.
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Red Blood Cell Count
Time frame: Pre-training and immediately post 4-week altitude training
RBC count measured from venous blood samples pre- and post-intervention.
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Hemoglobin
Time frame: Pre-training and immediately post 4-week altitude training
Hemoglobin concentration measured from venous blood samples.
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Hematocrit
Time frame: Pre-training and immediately post 4-week altitude training
Hematocrit levels measured pre- and post-training.
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Erythropoietin
Time frame: Pre-training and immediately post 4-week altitude training
Plasma EPO concentration measured from venous blood samples.
Study contacts
Contact information is provided by the study sponsor or research team.
Sponsors and collaborators
Lead sponsor
Macao Polytechnic University
Other
Registry information
Official study title
Effects of a 4-Week Altitude Training on Sport-Specific Performance, Body Composition, and Cardiac and Pulmonary Function in Adolescent Male Rowers: The Potential Role of Maturation
Important dates
- Study start
- 2026
- Primary completion
- 2026
- Study completion
- 2026
- First posted
- May 29, 2026
- Registry last updated
- May 29, 2026
OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.
View the official ClinicalTrials.gov record (opens in a new tab)This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.